CN111927959A - Integrated oil tank isolating valve - Google Patents
Integrated oil tank isolating valve Download PDFInfo
- Publication number
- CN111927959A CN111927959A CN202010840628.8A CN202010840628A CN111927959A CN 111927959 A CN111927959 A CN 111927959A CN 202010840628 A CN202010840628 A CN 202010840628A CN 111927959 A CN111927959 A CN 111927959A
- Authority
- CN
- China
- Prior art keywords
- valve
- pressure valve
- integrated
- cavity
- positive pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/035—Fuel tanks characterised by venting means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0023—Valves in the fuel supply and return system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/52—Means for additional adjustment of the rate of flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/029—Electromagnetically actuated valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K2015/03256—Fuel tanks characterised by special valves, the mounting thereof
- B60K2015/03302—Electromagnetic valves
Abstract
An integrated oil tank isolation valve comprises a shell, an integrated electromagnetic valve, a negative pressure valve component, a positive pressure valve component and a plug; a first cavity and a second cavity are sequentially arranged in the shell from top to bottom, and a vent plate is arranged between the first cavity and the second cavity; the center of the vent plate is provided with a central vent hole, the central vent hole is matched with the positive pressure valve assembly, the positive pressure valve assembly is provided with a primary opening vent hole, and the vent partition plate is also provided with a plurality of secondary opening vent holes which are uniformly distributed on the periphery of the central vent hole; the integrated solenoid valve located above the housing is pressed down into the housing. The integrated oil tank isolating valve disclosed by the invention has the advantages of reasonable structural design, fewer parts and more compact structure, reduces the installation steps, the number of tools and the risk of neglected installation or wrong installation, solves the phenomenon of rapid change of flow and pressure during opening and closing, ensures stable change of pressure, realizes secondary opening, and has wide application prospect.
Description
Technical Field
The invention relates to the technical field of automobile fuel management systems, in particular to an integrated oil tank isolation valve.
Background
With the advocation of energy conservation and environmental protection and the mature development of the oil-electricity hybrid power technology, the oil-electricity hybrid power automobile has been well popularized and used in the market. The hybrid electric vehicle has the advantages of good fuel economy and lower fuel steam emission. In the running process of the hybrid electric vehicle, an important part for switching between fuel oil use and electric energy use is an oil tank isolating valve. When the fuel oil is used for driving, the oil tank isolating valve is in an open state, the internal and external pressure of the oil tank is kept balanced, the carbon tank can be desorbed, and the working condition of the vehicle is consistent with that of a normal fuel oil vehicle. When the carbon tank is driven by electric energy, the oil tank isolating valve is closed, so that fuel steam is prevented from entering the carbon tank, zero emission is realized, and the service life of the carbon tank can be effectively prolonged.
The design of the oil tank isolating valve in the prior art only has simple closing and opening functions. In actual use, when using the electric energy, because evaporation, the condensation of fuel steam, high pressure situation and low pressure negative pressure situation can appear to the pressure in the oil tank, and the oil tank has to receive the high pressure to break, receives the negative pressure to inhale flat hidden danger existence, and the safety has very big risk. Therefore, the oil tank isolating valve can realize the functions of exhausting air under high pressure and supplementing air under negative pressure under the condition of not electrifying so as to ensure the normal use of the vehicle. In addition, in the working process of the oil tank isolating valve in the prior art, the phenomenon that the flow and the pressure change rapidly when the oil tank isolating valve is opened and closed exists, so that the system pressure is unstable for a period of time or other parts of the system are influenced to work normally.
In addition, the fixing mode of the electromagnetic valve and the oil tank isolating valve in the prior art is a mode which requires specific equipment and technology, such as metal riveting, non-metal welding and the like. The equipment investment cost of the modes is high, the occupied space is large, and the process is complex. Therefore, it is necessary to develop an integrated tank isolation valve to overcome the shortcomings of the prior art.
The Chinese patent application No. CN201510982917.0 discloses an oil tank isolating valve, which improves the safety and reliability of an oil tank in the use process by matching a drain valve with an air compensating valve, and does not solve the problems of the rapid change of flow and pressure when the oil tank isolating valve is opened and closed, large occupied space of a fixing mode of an electromagnetic valve and the oil tank isolating valve, complex process and the like.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects, the invention aims to provide the integrated oil tank isolating valve which has fewer parts and more compact structure, reduces the installation steps, the number of tools and the risk of neglected installation or wrong installation, shortens the assembly time of 10-20s and improves the production efficiency of products; the two-stage opening function is realized, the phenomenon that the flow and the pressure change rapidly when the isolating valve of the oil tank in the prior art is opened and closed is solved, the stable change of the pressure is ensured, and the application prospect is wide.
The technical scheme is as follows: an integrated oil tank isolation valve comprises a shell, an integrated electromagnetic valve, a negative pressure valve component, a positive pressure valve component and a plug; a first cavity and a second cavity are sequentially arranged in the shell from top to bottom, and a vent plate is arranged between the first cavity and the second cavity; the center of the vent plate is provided with a central vent hole, the central vent hole is matched with the positive pressure valve assembly, the positive pressure valve assembly is provided with a primary opening vent hole, and the vent partition plate is also provided with a plurality of secondary opening vent holes which are uniformly distributed on the periphery of the central vent hole; the integrated electromagnetic valve positioned above the shell is pressed downwards into the shell, the integrated electromagnetic valve is provided with a plurality of buckles along the trend direction of the pipeline and is connected with the shell through the buckles, the negative pressure valve assembly and the positive pressure valve assembly are respectively arranged in the first cavity and the second cavity, and the plug is welded to the bottom of the shell through ultrasonic waves; the integrated electromagnetic valve comprises an electromagnetic valve and a starting pressure valve, wherein the starting pressure valve is arranged at the bottom of the electromagnetic valve, and the electromagnetic valve and the starting pressure valve are of an integrated structure.
The integrated oil tank isolating valve is more reasonable in structural design. Firstly, the integrated electromagnetic valve integrates the opening pressure valve and the electromagnetic valve, and the electromagnetic valve is also in an integrated design, namely, movable iron, static iron, a return spring and the like of the electromagnetic valve are integrated, so that the independent installation of parts such as the movable iron, the static iron, the return spring and the like of the electromagnetic valve is avoided. Compared with the oil tank isolating valve in the prior art, the integrated oil tank isolating valve has the advantages that the number of components is less, the structure is more compact, the installation steps, the number of tools and the risk of neglected loading or misloading are reduced, the assembly time is shortened by 10-20s, and the production efficiency of products is improved.
In addition, the structural design of the integrated oil tank isolating valve can effectively reduce instantaneous pressure impact and ensure stable change of system pressure; the instantaneous maximum flow can be effectively reduced, and other functions of the system are prevented from being influenced by overlarge flow; the delay function of opening and closing can be realized; 2 kinds of non-electrified negative pressure opening pressure can be set, the pressure of the first stage is small, the flow is small, and the pressure of the second stage is large, and the flow is large.
The specific working process is as follows: the ventilation plate in the shell is of a double-hole design, namely a central ventilation hole and a secondary opening ventilation hole, and the integrated oil tank isolation valve achieves secondary opening capacity through the design. When the electromagnetic valve is electrified, the opening pressure valve is opened first to realize primary opening, so that gas with smaller flow can flow between the oil tank and the carbon tank, pressure change between the oil tank and the carbon tank is more stable, and severe pressure fluctuation can not be generated; after the first-stage opening, the valve core of the electromagnetic valve moves upwards continuously to drive the opening pressure valve, the opening pressure valve drives the negative pressure valve component, and the negative pressure valve component serves as a second-stage opening valve to realize second-stage opening, so that transition from small gas flow to large gas flow is realized.
Under the same pressure, according to the formula F = PS, the primary opening vent hole is smaller, the required electromagnetic force is smaller, so that exhaust is started, P is reduced along with the gradual reduction of the pressure, and the secondary opening vent hole is opened, so that large-flow ventilation is realized, and pressure is quickly relieved. The electromagnetic valve can be miniaturized and lightened by smaller electromagnetic force, thereby achieving the purposes of energy conservation and emission reduction.
Furthermore, a first channel horizontally extends outwards along the left direction of the first cavity of the integrated oil tank isolation valve so as to realize communication with an inner cavity of the oil tank; and a second channel horizontally extends to the right along the second cavity to realize the communication with the inner cavity of the carbon tank.
Further, according to the integrated oil tank isolation valve, the right side of the upper portion and the left side of the lower portion of the shell are respectively provided with the mounting hole, the rubber pad is mounted on the mounting hole, and the metal bushing is sleeved in the rubber pad.
Further, according to the integrated oil tank isolation valve, the sealing ring for the electromagnetic valve is arranged between the integrated electromagnetic valve and the shell, and the stroke of the integrated electromagnetic valve is 6 mm.
The stroke of the integrated electromagnetic valve is 6mm, when a specific volume oil tank is used, 28Kpa, 12V direct current is adopted, and the pressure release time is as follows: 5-6 s, the ventilation efficiency is improved by about 100%.
Further, in the integrated oil tank isolation valve, the negative pressure valve assembly comprises a negative pressure valve and a negative pressure valve spring, and the negative pressure valve spring are sequentially placed in the first cavity of the shell; the positive pressure valve assembly comprises a positive pressure valve and a positive pressure valve spring, the positive pressure valve and the positive pressure valve spring are sequentially placed in the second cavity of the shell, and the positive pressure valve center is provided with a first-level opening vent hole.
Further, foretell integrated form oil tank isolating valve, the malleation valve module still includes the positive pressure valve sealing washer, the positive pressure valve sealing washer cover is in the end cap, the end cap that has the positive pressure valve sealing washer passes through ultrasonic welding to the casing bottom.
Furthermore, the diameter of the first-stage opening vent hole is 3.5-4 mm, and the equivalent diameter of the second-stage opening vent hole is 12-15 mm.
The diameters of the first-stage opening vent hole and the second-stage opening vent hole can be adjusted according to the requirements of customers, and the flexibility is high.
Furthermore, in the integrated oil tank isolation valve, the number of the buckles is 4, the buckles are made of plastic, and the integrated electromagnetic valve is symmetrically provided with 2 buckles in the front-back direction along the trend direction of the pipeline.
The fixing mode of the electromagnetic valve and the oil tank isolating valve in the prior art is a mode of metal riveting, non-metal welding and the like which require specific equipment and process. The equipment investment cost of the modes is high, the occupied space is large, and the process is complex and costly. The integrated electromagnetic valve is connected with the shell through the plastic buckles, so that the installation is simpler and more convenient, the equipment investment is reduced, the process is simplified, the production efficiency is improved on the premise of keeping the sealing performance unchanged, and the weight of the assembly is lighter than that of metal riveting installation and fixation. And, set up the buckle along pipeline trend direction, can avoid pipeline, panel beating support on every side. In addition, use 4 buckles firm in connection, can be under the special condition that 1 buckle damaged, became invalid, guarantee holistic leakproofness.
Further, in the integrated oil tank isolation valve, the negative pressure valve assembly is arranged in the first cavity, and an air replenishing cavity which is always communicated with the first channel is arranged in the negative pressure valve assembly; the negative pressure valve assembly elastically presses against the upper surface of the vent plate to block a vent path through the secondary open vent; the positive pressure valve assembly is arranged in the second cavity and always elastically abuts against the lower surface of the vent plate, and an air leakage cavity which is always communicated with the second channel is arranged in the positive pressure valve assembly; the plug is arranged below the positive pressure valve component and penetrates through the positive pressure valve component, and the integrated electromagnetic valve is driven to move along the axial direction of the integrated electromagnetic valve so as to control the switching of the partition/communication state of the air supply cavity and the air release cavity.
The invention has the beneficial effects that:
(1) the integrated oil tank isolating valve is more reasonable in structural design, the opening pressure valve and the electromagnetic valve are integrated into the integrated electromagnetic valve, the electromagnetic valve is also integrally designed, namely, the movable iron, the static iron, the reset spring and the like of the electromagnetic valve are integrated, and the independent installation of the movable iron, the static iron, the reset spring and other parts of the electromagnetic valve is avoided. Compared with the oil tank isolating valve in the prior art, the integrated oil tank isolating valve has the advantages that the number of components is less, the structure is more compact, the installation steps, the number of tools and the risk of neglected installation or wrong installation are reduced, the assembly time is shortened by 10-20s, and the production efficiency of products is improved;
(2) the integrated oil tank isolating valve can effectively reduce instantaneous pressure impact and ensure stable change of system pressure; the instantaneous maximum flow can be effectively reduced, and other functions of the system are prevented from being influenced by overlarge flow; the delay function of opening and closing can be realized; 2 kinds of non-electrified negative pressure opening pressure can be set, the pressure of the first stage is small, the flow is small, and the pressure of the second stage is large, and the flow is large; smaller electromagnetic force is used, the electromagnetic coil is miniaturized, the heat productivity is less, and the weight is reduced, so that the purposes of energy conservation and emission reduction are achieved;
(3) according to the integrated oil tank isolation valve, the stroke of the integrated electromagnetic valve is 6mm, and when a specific volume oil tank, 28Kpa, is used, 12V direct current is achieved. Pressure release time: 5-6 s, the ventilation efficiency is improved by about 100%;
(4) according to the integrated oil tank isolating valve, the integrated electromagnetic valve is connected with the shell through the plastic buckles, so that the integrated oil tank isolating valve is simpler and more convenient to install, the equipment investment can be reduced, the process can be simplified, the production efficiency can be improved on the premise of keeping the sealing performance unchanged, and the weight of an assembly is lighter than that of a metal riveting installation fixing; use 4 buckles firm in connection, can guarantee holistic leakproofness under the special condition that 1 buckle damaged, became invalid.
Drawings
FIG. 1 is an overall assembly view of the integrated tank isolation valve of the present invention;
FIG. 2 is a schematic overall view of the integrated tank isolation valve of the present invention;
FIG. 3 is a left side view of the integrated tank isolation valve of the present invention;
FIG. 4 is a right side view of the integrated tank isolation valve of the present invention;
FIG. 5 is a cross-sectional view taken along line A-A of the integrated tank isolation valve of the present invention;
FIG. 6 is a schematic view of the housing of the integrated tank isolation valve of the present invention;
FIG. 7 is an external schematic view of an integrated solenoid valve of the integrated tank isolation valve of the present invention;
FIG. 8 is a schematic view of the interior of the integrated solenoid valve of the integrated tank isolation valve of the present invention;
FIG. 9 is a first schematic view of a vent plate of the integrated tank isolation valve of the present invention;
FIG. 10 is a second schematic view of a vent plate of the integrated tank isolation valve of the present invention;
FIG. 11 is a schematic view of a positive pressure valve of the integrated tank isolation valve of the present invention;
in the figure: the pressure-regulating valve comprises a shell 1, a first cavity 11, a second cavity 12, a vent plate 13, a central vent hole 131, a secondary opening vent hole 132, a first channel 14, a second channel 15, a mounting hole 16, a rubber pad 161, a metal bushing 162, an integrated electromagnetic valve 2, an electromagnetic valve 21, an opening pressure valve 22, a sealing ring 23 for the electromagnetic valve, a negative pressure valve assembly 3, a negative pressure valve 31, a negative pressure valve spring 32, a positive pressure valve assembly 4, a positive pressure valve 41, a primary opening vent hole 411, a positive pressure valve spring 42, a positive pressure valve sealing ring 43, a plug 5 and a buckle 6.
Detailed Description
The invention will be further elucidated with reference to the accompanying figures 1-11 and specific embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The integrated oil tank isolation valve with the structure as shown in fig. 1-11 comprises a shell 1, an integrated electromagnetic valve 2, a negative pressure valve component 3, a positive pressure valve component 4 and a plug 5; a first cavity 11 and a second cavity 12 are sequentially arranged in the shell 1 from top to bottom, and a vent plate 13 is arranged between the first cavity 11 and the second cavity 12; a central vent hole 131 is formed in the center of the vent plate 13, the central vent hole 131 is matched with the positive pressure valve assembly 4, a primary opening vent hole 411 is formed in the positive pressure valve assembly 4, and a plurality of secondary opening vent holes 132 are formed in the vent partition plate 13 and are uniformly distributed on the periphery of the central vent hole 131; the integrated electromagnetic valve 2 positioned above the shell 1 is pressed downwards into the shell 1, the integrated electromagnetic valve 2 is provided with a plurality of buckles 6 along the trend direction of the pipeline and is connected with the shell 1 through the buckles 6, the negative pressure valve component 3 and the positive pressure valve component 4 are respectively arranged in the first cavity 11 and the second cavity 12, and the plug 5 is welded to the bottom of the shell 1 through ultrasonic waves; the integrated electromagnetic valve 2 comprises an electromagnetic valve 21 and a starting pressure valve 22, wherein the starting pressure valve 22 is arranged at the bottom of the electromagnetic valve 21, and the electromagnetic valve 21 and the starting pressure valve 22 are of an integrated structure.
In addition, a first channel 14 horizontally extends outwards along the left direction of the first cavity 11 so as to realize communication with the inner cavity of the oil tank; a second channel 15 extends horizontally outwards to the right along the second cavity 12 to realize the communication with the inner cavity of the carbon tank.
In addition, the right side of the upper part and the left side of the lower part of the housing 1 are respectively provided with a mounting hole 16, a rubber pad 161 is mounted on the mounting hole 16, and a metal bushing 162 is sleeved in the rubber pad 161.
Besides, a sealing ring 23 for the electromagnetic valve is arranged between the integrated electromagnetic valve 2 and the shell 1, and the stroke of the integrated electromagnetic valve 2 is 6 mm.
Further, the negative pressure valve assembly 3 comprises a negative pressure valve 31 and a negative pressure valve spring 32, and the negative pressure valve 31 and the negative pressure valve spring 32 are sequentially placed in the first cavity 11 of the housing 1; positive pressure valve subassembly 4 includes positive pressure valve 41, positive pressure valve spring 42, positive pressure valve 41, positive pressure valve spring 42 put into the second cavity 12 of casing 1 in proper order in, positive pressure valve 41 center department has seted up the one-level and has opened air vent 411.
In addition, positive pressure valve subassembly 4 still includes positive pressure valve sealing washer 43, positive pressure valve sealing washer 43 cover is in end cap 5, end cap 5 that has positive pressure valve sealing washer 43 passes through ultrasonic welding to the 1 bottom of casing.
Further, the diameter of the first-stage opening vent 411 is 3.5-4 mm, and the equivalent diameter of the second-stage opening vent 132 is 12-15 mm.
Further, the number of the buckles 6 is 4, the buckles 6 are made of plastic, and the integrated electromagnetic valve 2 is symmetrically provided with 2 buckles 6 in the front-back direction along the pipeline trend direction.
Further, the negative pressure valve assembly 3 is arranged in the first cavity 11, and an air replenishing cavity which is always communicated with the first channel 14 is arranged in the negative pressure valve assembly 3; the negative pressure valve assembly 3 elastically presses against the upper surface of the vent plate 13 to block the vent path through the secondary open vent hole 132; the positive pressure valve assembly 4 is arranged in the second cavity 12 and always elastically abuts against the lower surface of the vent plate 13, and an air leakage cavity which is always communicated with the second channel 15 is arranged in the positive pressure valve assembly 4; the plug 5 is arranged below the positive pressure valve component 4 and penetrates through the positive pressure valve component 4, and the integrated electromagnetic valve 2 is driven to move along the axial direction of the integrated electromagnetic valve 2 so as to control the air supplementing cavity and the air leakage cavity to be switched in a partition/communication state.
Examples
Based on the above structure, as shown in FIGS. 1 to 11.
The integrated oil tank isolating valve is more reasonable in structural design. Firstly, the integrated solenoid valve 2 integrates the opening pressure valve 22 and the solenoid valve 21, and the solenoid valve 21 is also designed integrally, i.e. the moving iron, the static iron, the return spring and the like of the solenoid valve are integrated, so that the independent installation of parts such as the moving iron, the static iron, the return spring and the like of the solenoid valve is avoided.
Further, as can be seen from fig. 1, the integrated oil tank isolation valve of the present invention includes an integrated electromagnetic valve 2, an electromagnetic valve sealing ring 23, a negative pressure valve spring 23, a negative pressure valve 31, a housing 1, a rubber pad 161, a metal bushing 162, a positive pressure valve 41, a positive pressure valve spring 42, a positive pressure valve sealing ring 43, and a plug 5, compared with the oil tank isolation valve in the prior art, the number of components is less, the number of components is only 13, the integrated electromagnetic valve, the housing, the positive pressure valve, the negative pressure valve, and the like all belong to 2-level sub-components, the structure is more compact, the installation steps, the number of tools, the risk of missing or misassembly are reduced, the assembly time of 10-20s is shortened, and the production efficiency.
Further, the working process of the oil tank isolating valve is as follows: when the fuel oil is used for driving, the oil tank isolating valve is in an open state, the internal and external pressure of the oil tank is kept balanced, the carbon tank can be desorbed, and the working condition of the vehicle is consistent with that of a normal fuel oil vehicle. When the carbon tank is driven by electric energy, the oil tank isolating valve is closed, so that fuel steam is prevented from entering the carbon tank, zero emission is realized, and the service life of the carbon tank can be effectively prolonged.
The structural design of the integrated oil tank isolating valve can effectively reduce instantaneous pressure impact and ensure stable change of system pressure; the instantaneous maximum flow can be effectively reduced, and other functions of the system are prevented from being influenced by overlarge flow; the delay function of opening and closing can be realized; 2 kinds of non-electrified negative pressure opening pressure can be set, the pressure of the first stage is small, the flow is small, and the pressure of the second stage is large, and the flow is large.
The specific working process is as follows: the vent plate 13 in the housing 1 is a dual hole design, i.e., a center vent 131, a secondary opening vent 132, which allows the integrated tank isolation valve to achieve a secondary opening capability. When the electromagnetic valve 21 is electrified, the opening pressure valve 22 is firstly opened to realize primary opening, so that gas with smaller flow can flow between the oil tank and the carbon tank, and meanwhile, the pressure change between the oil tank and the carbon tank is more stable without generating severe pressure fluctuation; after the first stage is opened, the valve core of the electromagnetic valve 21 moves upwards continuously to drive the opening pressure valve 22, the opening pressure valve 22 drives the negative pressure valve 31 of the negative pressure valve component 3 to open, and at the moment, the negative pressure valve 31 serves as a second stage opening valve to realize second stage opening, so that transition from small gas flow to large gas flow is realized.
Under the same pressure, according to the formula F = PS, the primary opening vent 411 is smaller, the required electromagnetic force is smaller, so as to start exhaust, as the pressure gradually decreases, P decreases, and the secondary opening vent 132 is opened, so as to realize large-flow ventilation and rapid pressure relief. The electromagnetic valve can be miniaturized and lightened by smaller electromagnetic force, thereby achieving the purposes of energy conservation and emission reduction.
Further, the stroke of the integrated electromagnetic valve 2 is 6mm, and when a specific volume oil tank, 28Kpa, is used, 12V direct current is adopted. Pressure release time: 5-6 s, the ventilation efficiency is improved by about 100%.
Further, the diameter of the first-stage opening vent 411 is 3.5-4 mm, and the equivalent diameter of the second-stage opening vent 132 is 12-15 mm. The diameters of the first-stage opening vent 411 and the second-stage opening vent 132 can be adjusted according to the requirements of customers, and the flexibility is high.
Furthermore, the fixing mode of the electromagnetic valve and the oil tank isolating valve in the prior art is a mode which requires specific equipment and technology, such as metal riveting, non-metal welding and the like. The equipment investment cost of the modes is high, the occupied space is large, and the process is complex and costly. The integrated electromagnetic valve 2 is connected with the shell 1 through the plastic buckle 6, installation is simpler and more convenient, equipment investment can be reduced, the process is simplified, production efficiency is improved on the premise that sealing performance is not changed, and the weight of the assembly is lighter than that of metal riveting installation and fixation. And, set up buckle 6 along pipeline trend direction, can avoid pipeline, panel beating support on every side. In addition, use 4 buckles 6 firm in connection, can be in 1 special condition that buckle 6 damages, became invalid, guarantee holistic leakproofness.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination between the embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the idea of the present invention.
Claims (9)
1. An integrated oil tank isolation valve is characterized by comprising a shell (1), an integrated electromagnetic valve (2), a negative pressure valve component (3), a positive pressure valve component (4) and a plug (5); a first cavity (11) and a second cavity (12) are sequentially arranged in the shell (1) from top to bottom, and a vent plate (13) is arranged between the first cavity (11) and the second cavity (12); the center of the vent plate (13) is provided with a central vent hole (131), the central vent hole (131) is matched with the positive pressure valve component (4), the positive pressure valve component (4) is provided with a primary opening vent hole (411), and the vent partition plate (13) is also provided with a plurality of secondary opening vent holes (132) which are uniformly distributed on the periphery of the central vent hole (131); the integrated electromagnetic valve (2) located above the shell (1) is pressed downwards into the shell (1), the integrated electromagnetic valve (2) is provided with a plurality of buckles (6) along the trend direction of the pipeline and is connected with the shell (1) through the buckles (6), the negative pressure valve assembly (3) and the positive pressure valve assembly (4) are respectively arranged in the first cavity (11) and the second cavity (12), and the plug (5) is welded to the bottom of the shell (1) through ultrasonic waves; the integrated electromagnetic valve (2) comprises an electromagnetic valve (21) and an opening pressure valve (22), wherein the opening pressure valve (22) is arranged at the bottom of the electromagnetic valve (21), and the electromagnetic valve (21) and the opening pressure valve (22) are of an integrated structure.
2. The integrated tank isolation valve according to claim 1 wherein a first channel (14) extends horizontally outwardly to the left along the first chamber (11) to provide communication with the tank interior; and a second channel (15) horizontally extends outwards to the right along the second cavity (12) so as to realize the communication with the inner cavity of the carbon tank.
3. The integrated fuel tank isolating valve according to claim 1, wherein the housing (1) is provided with mounting holes (16) at the upper right side and the lower left side respectively, a rubber gasket (161) is mounted on the mounting holes (16), and a metal bushing (162) is sleeved in the rubber gasket (161).
4. The integrated fuel tank isolating valve according to claim 1, wherein a solenoid valve sealing ring (23) is arranged between the integrated solenoid valve (2) and the housing (1), and the stroke of the integrated solenoid valve (2) is 6 mm.
5. The integrated tank isolating valve according to claim 1, characterized in that the negative pressure valve assembly (3) comprises a negative pressure valve (31) and a negative pressure valve spring (32), the negative pressure valve (31) and the negative pressure valve spring (32) are sequentially placed in the first cavity (11) of the housing (1); malleation valve module (4) are including positive pressure valve (41), positive pressure valve spring (42), positive pressure valve (41), positive pressure valve spring (42) are put into the second cavity (12) of casing (1) in proper order in, positive pressure valve (41) center department has seted up one-level and has opened air vent (411).
6. The integrated tank isolating valve according to claim 5, wherein the positive pressure valve assembly (4) further comprises a positive pressure valve sealing ring (43), the positive pressure valve sealing ring (43) is sleeved on the plug (5), and the plug (5) with the positive pressure valve sealing ring (43) is welded to the bottom of the shell (1) through ultrasonic welding.
7. The integrated tank isolating valve as in claim 1, wherein the diameter of the primary opening vent hole (411) is 3.5-4 mm, and the equivalent diameter of the secondary opening vent hole (132) is 12-15 mm.
8. The integrated oil tank isolating valve according to claim 1, wherein the number of the buckles (6) is 4, the material of the buckles (6) is plastic, and the integrated electromagnetic valve (2) is symmetrically provided with 2 buckles (6) along the pipeline trend direction in the front-back direction.
9. The integrated tank isolating valve according to claim 2, characterized in that the negative pressure valve component (3) is arranged in the first cavity (11) and an air compensation cavity is arranged in the negative pressure valve component (3) and is always communicated with the first channel (14); the negative pressure valve assembly (3) elastically presses against the upper surface of the vent plate (13) to block a vent path through the secondary open vent hole (132); the positive pressure valve component (4) is arranged in the second cavity (12) and is always elastically abutted against the lower surface of the vent plate (13), and an air leakage cavity which is always communicated with the second channel (15) is arranged in the positive pressure valve component (4); the plug (5) is arranged below the positive pressure valve component (4) and penetrates through the positive pressure valve component (4), and the integrated electromagnetic valve (2) is driven to move along the axial direction of the integrated electromagnetic valve so as to control the air replenishing cavity and the air leakage cavity to be switched in a partition/communication state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010840628.8A CN111927959A (en) | 2020-08-20 | 2020-08-20 | Integrated oil tank isolating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010840628.8A CN111927959A (en) | 2020-08-20 | 2020-08-20 | Integrated oil tank isolating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111927959A true CN111927959A (en) | 2020-11-13 |
Family
ID=73305602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010840628.8A Pending CN111927959A (en) | 2020-08-20 | 2020-08-20 | Integrated oil tank isolating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111927959A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685290A (en) * | 2021-08-03 | 2021-11-23 | 东风富士汤姆森调温器有限公司 | Fuel evaporation control system based on pilot-operated type oil tank isolating valve |
| CN113700579A (en) * | 2021-08-03 | 2021-11-26 | 东风富士汤姆森调温器有限公司 | Pilot-operated type oil tank isolating valve |
| CN113931769A (en) * | 2021-10-13 | 2022-01-14 | 亚普汽车部件股份有限公司 | Integrated electric control assembly of fuel system and fuel system control method |
| CN113932016A (en) * | 2021-10-12 | 2022-01-14 | 苏州恩都法汽车系统有限公司 | Carbon tank stop valve |
| CN115929925A (en) * | 2023-02-08 | 2023-04-07 | 保定平恩康汽车技术有限公司 | Fuel isolation valve of hybrid oil tank |
-
2020
- 2020-08-20 CN CN202010840628.8A patent/CN111927959A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685290A (en) * | 2021-08-03 | 2021-11-23 | 东风富士汤姆森调温器有限公司 | Fuel evaporation control system based on pilot-operated type oil tank isolating valve |
| CN113700579A (en) * | 2021-08-03 | 2021-11-26 | 东风富士汤姆森调温器有限公司 | Pilot-operated type oil tank isolating valve |
| CN113685290B (en) * | 2021-08-03 | 2023-09-12 | 东风富士汤姆森调温器有限公司 | Fuel evaporation control system based on pilot type oil tank isolation valve |
| CN113932016A (en) * | 2021-10-12 | 2022-01-14 | 苏州恩都法汽车系统有限公司 | Carbon tank stop valve |
| CN113931769A (en) * | 2021-10-13 | 2022-01-14 | 亚普汽车部件股份有限公司 | Integrated electric control assembly of fuel system and fuel system control method |
| CN115929925A (en) * | 2023-02-08 | 2023-04-07 | 保定平恩康汽车技术有限公司 | Fuel isolation valve of hybrid oil tank |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111927959A (en) | Integrated oil tank isolating valve | |
| CN212672413U (en) | High-effect low-cost oil tank isolating valve | |
| JP2022528963A (en) | Integrated pump and valve machine for car seat pneumatic lumbar support | |
| CN110594459B (en) | Integrated oil tank isolation valve | |
| CN208460850U (en) | A kind of battery open circuit explosion-proof valve and its anti-explosion battery | |
| CN207842917U (en) | A kind of automatically controlled emergency braking system for pneumatic brake | |
| CN114542969A (en) | Electromagnetic valve of high-pressure cylinder valve and high-pressure cylinder valve | |
| CN210290798U (en) | High-pressure hydrogen cylinder mouth valve for vehicle | |
| CN112709856A (en) | Electromagnetic valve device, pressure vessel and vehicle | |
| CN210502651U (en) | Commercial vehicle binary channels ABS front axle brake module assembly | |
| CN109927702B (en) | Full-functional rear axle braking module of commercial car braking system | |
| CN112267958A (en) | Fuel tank isolation valve and use method thereof | |
| CN210087496U (en) | Oil gas automatic switch-over gas valve integrated configuration | |
| CN109767950B (en) | Self-energy arc extinguish chamber and circuit breaker using same | |
| CN219856779U (en) | Driving battery pack structure of electric vehicle | |
| CN214396718U (en) | Electromagnetic relay valve | |
| CN215487923U (en) | Oil inlet valve capable of improving sealing performance | |
| CN217558447U (en) | Electronic fuel pump assembly with integrated oil tank isolation valve | |
| CN210971033U (en) | Commercial vehicle binary channels ABS rear axle brake module assembly | |
| CN218640648U (en) | Heat pump compressor | |
| CN115929925B (en) | Fuel oil isolation valve of hybrid fuel tank | |
| CN114914473B (en) | Vehicle fuel cell integrated system and vehicle | |
| CN214501466U (en) | Air treatment device and air conditioner | |
| CN218236236U (en) | Three-way electromagnetic valve for switching cooling liquid | |
| CN113809888B (en) | Single-shaft motor and control system thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |